<h1>{{title2}}</h1>
<h3>{{keywords2}}</h3>
<!-- 值传过来了，我看串行了 -->
<ul>
    <li *ngFor="let item of list3;let i=index;">
        <p>索引值：{{i}}</p>
        <h3>{{item.title}}</h3>
        <p>{{item.content}}</p>
    </li>
</ul>

<button (click)="getParentMsg()">子组件里面获取父组件传入的keywords</button>
<button (click)="getParentRun()">子组件里面执行父组件的run方法</button>
<hr/>